Doctor’s orders: Eat ice cream, and other tips for a long and healthy life

Renowned oncologist and health policy expert Dr. Ezekiel Emanuel goes beyond the basics of diet, exercise and sleep in his new health book, Eat Ice Cream: Six Simple Rules for a Long, Healthy Life. He discusses with Norah O’Donnell the importance of happiness, social engagement and recommended behaviors for longevity (such as “Don’t be a fool”).